Title:
AUTOMATIC TRACKING DEVICE FOR MOBILE OBJECT
Document Type and Number:
Japanese Patent JPH04177410
Kind Code:
A
Abstract:
PURPOSE:To detect an accurate direction of an optical axis of an image pickup device and to automatically track a mobile object by providing a turning angle acceleration sensor and an elevation angle acceleration sensor at the places near the turning axis of the image pickup device. CONSTITUTION:An image pickup device 1 using an ITV camera, etc., is set on a drive stage 2 in a controllable way for turning and the angle of elevation. An image processor 5 inputs the image signal 3 outputted from the device 1 and outputs a geometric centroid 9 of a mobile object. The centroid 9 is processed by a position arithmetic unit 6 and a measurement value output signal. 8 is outputted. A drive stage controller 7 outputs a drive stage control signal 4 in order to catch the mobile object at the center position of an image of the device 1 based on the coordinates of the centroid 9. The angle acceleration sensor units 38-1-and 38-2 are attached at the places near a turning axis and an elevation angle axis of the device 1 respectively. A direction changed variable computing element 40 generates the image pickup direction of the device 1 and outputs it to the processor 5.
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Inventors:
ENDO TATSUYA
YAMAJI KATSUTOSHI
YAMAJI KATSUTOSHI
Application Number:
JP30334890A
Publication Date:
June 24, 1992
Filing Date:
November 08, 1990
Export Citation:
Assignee:
SUMITOMO HEAVY INDUSTRIES
International Classes:
F41G7/22; G01S3/786; G05D1/12; H04N5/232; H04N7/18; F41G5/14; (IPC1-7): F41G5/14; F41G7/22; G01S3/786; G05D1/12; H04N5/232; H04N7/18
Attorney, Agent or Firm:
Akimura Asamura (5 people outside)